Product Description
Standex Electronics MK21 Series Reed Sensor; Screw Flange; SPST-NC; 15-20 AT; 0.5 A; Cable, Round; 500 mm
Reed Sensor • Reed Sensor • Mounting Style: Screw Flange • Contact Configuration: SPST-NC • Operate Range: 15-20 AT • Switching Current: 0.5 A • Termination: Cable, Round • Cable Length: 500 mm
Product Information
| Manufacturer | Standex Electronics |
| Product Category | Sensor |
| Product Sub Category | Reed Sensor |
| Series | MK21 Series |
| Catalog Part Number | MK21P-1B90C-500W |
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Mounting Style | Screw Flange |
| Contact Configuration | SPST-NC |
| Operate Range | 15-20 AT |
| Contact Rating | 10 W |
| Switching Voltage | 175 V |
| Switching Current | 0.5 A |
| Size Body | 1.122" L x 0.748" W x 0.256" H (28.50mm x 19.00mm x 6.50mm) |
| Termination | Cable, Round |
| Packaging | Bulk |
| Cable Length | 500 mm |
| Termination | Stripped &Ttinned |
Series Features
MK21 Series Reed Sensor
Series DescriptionThe MK21 Series is a rugged, rectangular reed sensor designed for screw-fastened flange mounting, offering reliable magnetic sensing in industrial, automotive, security, and appliance environments. Available in two variants—MK21P and MK21M—this series supports high-temperature resistance, custom cable configurations, and multiple switch options for versatile application needs.
The MK21 Series delivers robust performance and environmental resilience, making it a trusted solution for OEMs and engineers working in high-temperature or harsh industrial settings.
- Rectangular flange-mount housing with cable terminals
- MK21M variant supports high-temperature environments up to +150°C
- UL-approved and IP67-rated for durability
- Customizable switch type, cable length, and termination
- Right-side cable exit available (MK21PR variant)
Automotive systems
Industrial automation
Security and access control
White goods and appliances
Position, level, and end-limit sensing